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| author | Sean Anderson <seanga2@gmail.com> | 2021-03-11 08:15:44 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-04-13 00:44:55 +0300 |
| commit | 69a752983171c2983fc1f29c7cfa1844f41e5d8b (patch) | |
| tree | ad9e9b49513373d27ced4b86bb4637550acbbffc /drivers/fastboot | |
| parent | c4ac52f55d90bd46ade9db6f761638fdfdf26e16 (diff) | |
| download | u-boot-69a752983171c2983fc1f29c7cfa1844f41e5d8b.tar.xz | |
fastboot: Fix possible buffer overrun
This fixes several uses of strn(cpy|cat) which did not terminate their
destinations properly.
Fixes de1728ce4c ("fastboot: Allow u-boot-style partitions")
Reported-by: Coverity Scan
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Diffstat (limited to 'drivers/fastboot')
| -rw-r--r-- | drivers/fastboot/fb_mmc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/fastboot/fb_mmc.c b/drivers/fastboot/fb_mmc.c index 8e74e50e91..2f3837e559 100644 --- a/drivers/fastboot/fb_mmc.c +++ b/drivers/fastboot/fb_mmc.c @@ -40,7 +40,7 @@ static int raw_part_get_info_by_name(struct blk_desc *dev_desc, /* check for raw partition descriptor */ strcpy(env_desc_name, "fastboot_raw_partition_"); - strncat(env_desc_name, name, PART_NAME_LEN); + strlcat(env_desc_name, name, PART_NAME_LEN); raw_part_desc = strdup(env_get(env_desc_name)); if (raw_part_desc == NULL) return -ENODEV; @@ -61,7 +61,7 @@ static int raw_part_get_info_by_name(struct blk_desc *dev_desc, info->start = simple_strtoul(argv[0], NULL, 0); info->size = simple_strtoul(argv[1], NULL, 0); info->blksz = dev_desc->blksz; - strncpy((char *)info->name, name, PART_NAME_LEN); + strlcpy((char *)info->name, name, PART_NAME_LEN); if (raw_part_desc) { if (strcmp(strsep(&raw_part_desc, " "), "mmcpart") == 0) { @@ -114,7 +114,7 @@ static int part_get_info_by_name_or_alias(struct blk_desc **dev_desc, /* check for alias */ strcpy(env_alias_name, "fastboot_partition_alias_"); - strncat(env_alias_name, name, PART_NAME_LEN); + strlcat(env_alias_name, name, PART_NAME_LEN); aliased_part_name = env_get(env_alias_name); if (aliased_part_name != NULL) ret = do_get_part_info(dev_desc, aliased_part_name, |